Rutherford video clip 2012
http://www.youtube.com/watch?v=wzALbzTdnc8&feature=relmfu
Rutherford video clip 2
http://www.youtube.com/watch?v=XBqHkraf8iE&feature=related
Chadwick and neutron video clip 1
http://www.youtube.com/watch?v=HnmEI94URK8&feature=related
Chadwick and neutron video clip 2
http://www.youtube.com/watch?v=HnmEI94URK8&feature=related
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